Home / 1,280,730.45-1,921,095.69-482,191.14

Finding the Fourth Proportional to 1,280,730.45, 1,921,095.69 and 482,191.14

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Solution

The fourth proportional to 1,280,730.45, 1,921,095.69 and 482,191.14 is: 723,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,730.45 : 1,921,095.69 = 482,191.14 : x
  2. Step 2: Convert to fraction form
    1,280,730.45/1,921,095.69 = 482,191.14/x
  3. Step 3: Cross multiply
    1,280,730.45x = 1,921,095.69 × 482,191.14
  4. Step 4: Simplify right side
    1,280,730.45x = 926,335,320,810.19
  5. Step 5: Solve for x
    x = 926,335,320,810.19/1,280,730.45
  6. Step 6: Final answer
    x = 723,286.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.